FreeStyle Libre 3 Sensor | 14 Day Wear | World’s Smallest, Thinnest CGM Sensor
$119.99 — or subscribe to save 10%
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FREEDOM AT YOUR FINGERTIPS
Libre 3: The World’s Smallest, Thinest CGM Sensor
Take control over glucose monitoring like never before with the Freestyle Libre 3 – the smallest, most discrete CGM sensor!
The Libre 3 sensor enables the user to obtain continuous, discrete blood glucose readings without the constant hassle of carrying and disposing of lancets and test strips. The Freestyle Libre 3 sensor is worn on the back of the arm and automatically tracks glucose levels day and night.
The Libre 3 system is smaller, simpler and more accurate than ever. It has has two simple components: (1) sensor and (2) reader or a compatible smartphone. The small sensor placed on the body will send continuous readings to the user’s Libre 3 Reader or paired smartphone.
Contents
- 1 Freestyle Libre 3 Sensor – 14 day supply
- 1 Sensor applicator
- Product information card
- Reader NOT included!
Libre 3 vs. 2 – THE NEW FEATURES
- Smaller than 2 stacked pennies: Features the world’s smallest, thinnest‡, and most discreet sensor. Size: 2.9 mm height and 21 mm diameter. Weight: 1 gram
- 1-piece, preloaded applicator: as opposed to Libre 2’s 2-piece applicator
- Real-time glucose readings are sent every minute to your smartphone* to be viewed with a quick glance†.
- User’s glucose data is automatically uploaded to LibreView to facilitate data sharing with your healthcare team.
Benefits
- FDA-cleared for adults and children with diabetes ages 4 years and above
- Accurate, up-to-the minute sensor readings
- Alarms with no scanning
- Optional real-time glucose alarms with accuracy you can trust
- Proven accuracy for children and teens (ages 4 and older) that caregivers can trust
Why Libre 3 Glucose Monitoring System?
The Freestyle Libre 3 system is one of the only glucose monitoring devices to measure glucose levels every minute. When combined with the Libre 3 14-day sensor, nearly unmatched levels of accuracy in a wearable CGM are provided. This means that a total of 1,440 readings per day ensure the user is always aware and in control.
Features
The Libre 3 System offers the following innovative features:
- Continuous glucose monitoring 24/7
- Wearable 14-day easy-to-apply sensor
- Instantaneous readings from the Libre 3 Reader (not included)
- Ability to pair with a smartphone through the FreeStyle Libre 3 App
- Audible high & low glucose alarms
- OPTIONAL: hyper-, hypo-, signal loss | MANDATORY: urgent low
- Small, discrete & scannable through clothing
Specifications
- Single use 14-day sensor
- Glucose reading range: 40 to 400 mg/dL
- Size: 2.9 mm height and 21 mm diameter
- Weight: 1 gram
- Power source: one silver oxide battery
- Memory: Up to 14 days (glucose readings stored every 5 minutes)
- Transmission range: 33 feet unobstructed
- Operating temperature 50 °F to 113 °F
- Water resistant: IP27: Can withstand immersion into 3 ft of water for up to 30 minutes
Applying the Libre 3 Sensor
Applying the sensor is surprisingly easy. By following just a few easy steps you will be on your way to begin monitoring your glucose levels with the Libre 3 sensor system!
- Wash, Clean, and Dry: Select a site on the back of your upper arm. Clean the skin with non-moisturizing, fragrance-free soap and water. Use an alcohol wipe to remove any oily residue and let air dry.
- Open Applicator: Unscrew cap from applicator and place sensor over the back of your upper arm.
WARNING! DO NOT PUT CAP BACK ON AS IT MAY DAMAGE THE SENSOR.
- Apply: To apply the sensor, press firmly and listen for the click. Pull back slowly after a few seconds.
Watch the Libre 3 application video below for more details:
Setting up and Obtaining Readings with the Libre 3 Sensor and iPhone
To use the Libre 3 Sensor with iPhone, first install the official Libre 3 app from the appstore. Upon launching the app, a prompt will appear to connect the device. This video walks you through the process:
How Often to Change the Libre 3 Sensor
Each wearable Libre 3 sensor is good for 14 days of use upon application. After 14 days have passed the sensor will no longer provide a reading and will need to be changed. Order the Libre 3 Sensor with Auto-ship to Avoid Running Out.
Watch the video below on how to replace your Libre 3 sensor:
Do I need the Libre 3 Reader?
Each Libre 3 Sensor will work with either the “optional” reader, or a paired smartphone through the Libre 3 iPhone app. You must have a Libre 3 reader or a compatible smartphone to receive the readings that the sensor collects.
Libre 3 Sensor Coupons and Discounts
At Diabetic Outlet we are dedicated to fast, reliable, and cost efficient offerings. Looking for a way to save time and cost on the Libre 3 sensor? We offer the following options
- Automatic subscription refills (sensor only) at a discount
- Site-wide coupons available through our monthly newsletter
- Bundle Discounts – Save on a Freestyle Libre 3 Reader & Sensor Bundle Here!
- Quantity Discounts – Buy Multiple Freestyle Libre 3 Sensors at once and save!
- Free Shipping
Download the App
Libre 3 User Guide
**This listing is for the sensor only. The reader must be purchased separately.
A prescription may be required to purchase this item.
| Weight | 3 oz |
|---|---|
| Dimensions | 3 × 2 × 3 in |
| Brand | Freestyle Libre, Freestyle Libre 3 |
47 reviews for FreeStyle Libre 3 Sensor | 14 Day Wear | World’s Smallest, Thinnest CGM Sensor
| 5 star | 95 | 95% |
| 4 star | 4 | 4% |
| 3 star | 0% | |
| 2 star | 0% | |
| 1 star | 0% |
Customer Images






Anna
Diabetic outlet is my go to online shop for supplies. Fast, reliable and high quality products.

Anonymous
This sensor is very light ans no pain at all. It is really good device!

Mark
I love this freestyle libre 3. I no longer have to pull out my phone to check and can check the app. Arrived quickly and easy to install and use. It is so small I don't knock it off like the others.

Gilberto Pichardo
Very expensive for 14 days without insurance cover. It must be cheaper..In the other hands I don’t have to use the hands, I don’t have to use the needle on my fingers.
Gilberto
Very good hope that the price will come down soon, otherwise no complaints.

Gilberto P.
This the very best investment that I ever made. My fingers with the nerves pain, can’t take it anymore. Thanks the product. “Filling great” Thank you. He hy





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FreeStyle Libre 3 Sensor | 14 Day Wear | World's Smallest, Thinnest CGM Sensor
Q & A
FreeStyle Libre 3 Sensor | 14 Day Wear | World's Smallest, Thinnest CGM Sensor
An adhesive patch is often recommended to secure the sensor to the arm for up to 14 days ensuring that the sensor won't fall while while bathing, showering, swimming or exercise.
https://diabeticoutlet.com/product/mirtouch-waterproof-adhesive-patch-for-freestyle-libre-1-2-3-sensor/
The sensor is water resistant according to the manufacturer. It can be worn while bathing, showering, swimming or exercise. The Sensor should not be taken below 1 metre of water (3 feet), and should not be submerged in water for more than 30 minutes. A waterproof adhesive patch is often recommended to protect the sensor against water and to keep it secured to the arm.
https://diabeticoutlet.com/product/mirtouch-waterproof-adhesive-patch-for-freestyle-libre-1-2-3-sensor/
The Libre 3 sensor is smaller than the Libre 2 and is about the size of two stacked pennies as opposed to two stacked quarters with the Libre 2.
Diabetic Outlet answered on September 12, 2024 store managerSorry, no questions were found










I love the ease of being able to watch my sugar level anytime or anywhere.
Excellent service and very fast and accurate delivery
Excellent product. Easy to manage. Fast delivery. Great to control my glucose levels.
We love these Libre 3 sensors. We wish they’d been available years ago!
Great product. Fast and accurate shipping. A useful tool for my diabetes management